Abstract:
In this paper, the mass exchange between drops of various sizes resulting from their coagulation and fragmentation in a two-phase jet is studied. Drops are combined into classes, and the drops of the isolated classes are assumed to consist of pure substances (components) in the initial cross-section of the jet. When moving away from the nozzle due to interparticle interaction, other components appear in the drops of all classes. The study of the variation in the component composition of drops makes it possible to analyze the intensity of mass exchange between drops and the ratio between coagulation and fragmentation of drops. Calculations have shown that coagulation and fragmentation of the drops occur simultaneously in the jet, but coagulation prevails over fragmentation. At a short distance from the nozzle, a significant change is observed in the fraction of components in the drops, and further their component composition remains constant. As the concentration of drops increases, the ratio between components in the drops tends to the ratio between the volume concentrations of the drops from the isolated classes in the initial cross-section of the jet.
Keywords:two-phase jet, drops, gas, coagulation and fragmentation of drops, mathematical model, calculation results.
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